[GE users] Help: Remote Operate

Lee Amy openlinuxsource at gmail.com
Wed Jan 23 12:45:41 GMT 2008


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2008/1/23, Reuti <reuti at staff.uni-marburg.de>:
>
> Hi,
> Am 23.01.2008 um 12:30 schrieb Lee Amy:
>
> 2008/1/23, Reuti <reuti at staff.uni-marburg.de>:
> >
> > Hi,
> >
> > Am 23.01.2008 um 09:27 schrieb Lee Amy:
> >
> > > Our cluster uses SGE as resources schedule software. And my teacher
> > > need SSH to login this cluster. So I have some following questions
> > > before I'm going to set up.
> > >
> > > 1.I have enabled Tickets Strategy to handle priorities of job. So I
> > > wanna know whether I can still use Tickets to do dynamic
> > > reprioritization.
> > >
> > > 2.In my cluster, MPI uses RSH as nodes communications software. If
> > > my teacher logins the cluster and uses SGE to submit parallel jobs
> > > with PE by SSH, is there any limitation when he control his jobs?
> >
> > what will he do with his login? I mean, an option would be to use an
> > interactive queue instead (with qlogin or qrsh). So SGE would know
> > that there is something running on this node in addition and spool
> > less jobs to it.
> >
> > If you need SSH, you could also implement: http://
> > gridengine.sunsource.net/howto/qrsh_qlogin_ssh.html
> >
> > -- Reuti
> >
> > ---------------------------------------------------------------------
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> > For additional commands, e-mail: users-help at gridengine.sunsource.net
> >
> > Thank you for your reply. He logins by ssh and uses qsub command to
> submit jobs. And some jobs are parallel jobs with PE. In SGE the qlogin and
> qrsh use rsh and its daemon. So I don't know whether it's okay if he submits
> and runs parallel jobs with PE.
>
>
> you mean: his parallel jobs use SSH? It should work independend of the
> node from which he submits.
>
> It wiln work, but you will have neither accounting nor complete job
> control, as SGE isn't aware that something was started on a node. You can:
>
> a) recompile SGE with the flag -tight-ssh to get also a Tight SSH
> integration.
>
> b) Can he adjust his calls to use rsh instead? Often this can be done by
> setting an environment variable, and override the compiled-in communication
> method.
>
> -- Reuti
>
Thank you very much. I will have a try.

Regards,

Amy Lee



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